Electrolytic Cells And Electrolysis
Chapter Name : Electrochemistry |
Sub Topic Code : 102_12_03_06_02 |
Topic Name : Electrolytic Cells And Electrolysis |
|
Sub Topic Name : Products Of Electrolysis |
|
Introduction
·
Products of
electrolysis depend on :
- The type of electrodes used.
- The nature of material being
oxidised.
Some electrochemical
reactions might be feasible, but kinetically slow. Such reactions require a
high potential called overpotential.
Pre-Requisites:
·
Redox reactions
Electrochemical cell
principle and working
Activity:
Batteries
Real Life Question:
How can we predict
the products formed during electrolysis of a compound?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Electrochemical or galvanic cell | A device in which chemical energy released during a chemical reaction is converted into electrical energy. |
| Electrolysis | It is the decomposition of compound using electricity. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Batteries | Batteries are electrolytic cells |
Real life uses :
Products of electrolysis have many important
industrial applications.
Eg: Electrolysis of brine gives :
-
Chlorine : Used as disinfectant and purifier
Hydrogen: For manufacture of hydrochloric acid
Places to visit :
Home
Practical examples around us
| Examples | Explainations |
|---|---|
| Chlorine | It is a product of electrolysis of aqueous NaCl and is used as a disinfectant at home. |
What you learn in Theory:
Factors governing
products of electrolysis
What you learn in Practice:
Uses of products of
electrolysis